如图所示,可视为质点的木块以0.5m/s2的加速度向右做匀减速直线运动,已知ab=bc=cd=1m,木块经过bc所用的时间为1s,下列说法正确的是A.木块经过b点时的速度为1.5m/sB.木块过c点后2s内的位移为0.5mC.木
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/17 13:19:52
![如图所示,可视为质点的木块以0.5m/s2的加速度向右做匀减速直线运动,已知ab=bc=cd=1m,木块经过bc所用的时间为1s,下列说法正确的是A.木块经过b点时的速度为1.5m/sB.木块过c点后2s内的位移为0.5mC.木](/uploads/image/z/8407883-11-3.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%8F%AF%E8%A7%86%E4%B8%BA%E8%B4%A8%E7%82%B9%E7%9A%84%E6%9C%A8%E5%9D%97%E4%BB%A50.5m%2Fs2%E7%9A%84%E5%8A%A0%E9%80%9F%E5%BA%A6%E5%90%91%E5%8F%B3%E5%81%9A%E5%8C%80%E5%87%8F%E9%80%9F%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E5%B7%B2%E7%9F%A5ab%3Dbc%3Dcd%3D1m%2C%E6%9C%A8%E5%9D%97%E7%BB%8F%E8%BF%87bc%E6%89%80%E7%94%A8%E7%9A%84%E6%97%B6%E9%97%B4%E4%B8%BA1s%2C%E4%B8%8B%E5%88%97%E8%AF%B4%E6%B3%95%E6%AD%A3%E7%A1%AE%E7%9A%84%E6%98%AFA.%E6%9C%A8%E5%9D%97%E7%BB%8F%E8%BF%87b%E7%82%B9%E6%97%B6%E7%9A%84%E9%80%9F%E5%BA%A6%E4%B8%BA1.5m%2FsB.%E6%9C%A8%E5%9D%97%E8%BF%87c%E7%82%B9%E5%90%8E2s%E5%86%85%E7%9A%84%E4%BD%8D%E7%A7%BB%E4%B8%BA0.5mC.%E6%9C%A8)
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